Hitachi Relion 670 Series Product Manual page 169

Line differential protection RED670
Version 2.2
Table 237. Differential functions
Function
High impedance differential protection, single phase
Restricted earth fault protection, low impedance
Line differential protection for 3 CT sets, 2-3 line ends
Line differential protection for 6 CT sets, 3-5 line ends
Line differential protection for 3 CT sets, 2-3 line ends, inzone
transformer
Line differential protection for 6 CT sets, 3-5 line ends, inzone
transformer
High speed line differential protection for 4 CT sets, 2-3 line ends
Line differential protection logic
Additional security logic for differential protection
1) Only one PDIF must be ordered. L4CPDIF requires line data communication in 2Mbps mode.
2) Required with L3CPDIF, L6CPDIF, LT3CPDIF or LT6CPDIF
Table 238. Impedance protection
Position 1 2 3 4
B
Hitachi Energy
Function
identification
HZPDIF
REFPDIF
L3CPDIF
L6CPDIF
LT3CPDIF
LT6CPDIF
L4CPDIF
LDLPSCH
LDRGFC
5 6 7 8 9 10
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Ordering no
1MRK005904-HB
1MRK005904-LD
1MRK005904-MC
1MRK005904-NC
1MRK005904-PC
1MRK005904-RC
1MRK005905-NB
1MRK005904-SA
1MRK005904-TA
11 12 13 14 15 16
1MRK 505 379-BEN R
Position Available Selected
qty qty
6 00-03
8 0-2
9 0-1
10 0-1
11 0-1
12 0-1
13 0-1
14 0-1
15 0-1
17 18 19 20 21 22
Notes and rules
1)
2)
23 24 25 26
0 0 0 0
169